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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_MIPS | 7 #if V8_TARGET_ARCH_MIPS |
8 | 8 |
9 // Note on Mips implementation: | 9 // Note on Mips implementation: |
10 // | 10 // |
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1275 } | 1275 } |
1276 | 1276 |
1277 | 1277 |
1278 void FullCodeGenerator::VisitForOfStatement(ForOfStatement* stmt) { | 1278 void FullCodeGenerator::VisitForOfStatement(ForOfStatement* stmt) { |
1279 Comment cmnt(masm_, "[ ForOfStatement"); | 1279 Comment cmnt(masm_, "[ ForOfStatement"); |
1280 SetStatementPosition(stmt); | 1280 SetStatementPosition(stmt); |
1281 | 1281 |
1282 Iteration loop_statement(this, stmt); | 1282 Iteration loop_statement(this, stmt); |
1283 increment_loop_depth(); | 1283 increment_loop_depth(); |
1284 | 1284 |
1285 // var iterator = iterable[@@iterator]() | 1285 // var iterable = subject |
1286 VisitForAccumulatorValue(stmt->assign_iterator()); | 1286 VisitForAccumulatorValue(stmt->assign_iterable()); |
1287 __ mov(a0, v0); | 1287 __ mov(a0, v0); |
1288 | 1288 |
1289 // As with for-in, skip the loop if the iterator is null or undefined. | 1289 // As with for-in, skip the loop if the iterator is null or undefined. |
1290 __ LoadRoot(at, Heap::kUndefinedValueRootIndex); | 1290 __ LoadRoot(at, Heap::kUndefinedValueRootIndex); |
1291 __ Branch(loop_statement.break_label(), eq, a0, Operand(at)); | 1291 __ Branch(loop_statement.break_label(), eq, a0, Operand(at)); |
1292 __ LoadRoot(at, Heap::kNullValueRootIndex); | 1292 __ LoadRoot(at, Heap::kNullValueRootIndex); |
1293 __ Branch(loop_statement.break_label(), eq, a0, Operand(at)); | 1293 __ Branch(loop_statement.break_label(), eq, a0, Operand(at)); |
1294 | 1294 |
1295 // Convert the iterator to a JS object. | 1295 // var iterator = iterable[Symbol.iterator](); |
1296 Label convert, done_convert; | 1296 VisitForEffect(stmt->assign_iterator()); |
1297 __ JumpIfSmi(a0, &convert); | |
1298 __ GetObjectType(a0, a1, a1); | |
1299 __ Branch(&done_convert, ge, a1, Operand(FIRST_SPEC_OBJECT_TYPE)); | |
1300 __ bind(&convert); | |
1301 __ push(a0); | |
1302 __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION); | |
1303 __ mov(a0, v0); | |
1304 __ bind(&done_convert); | |
1305 __ push(a0); | |
1306 | 1297 |
1307 // Loop entry. | 1298 // Loop entry. |
1308 __ bind(loop_statement.continue_label()); | 1299 __ bind(loop_statement.continue_label()); |
1309 | 1300 |
1310 // result = iterator.next() | 1301 // result = iterator.next() |
1311 VisitForEffect(stmt->next_result()); | 1302 VisitForEffect(stmt->next_result()); |
1312 | 1303 |
1313 // if (result.done) break; | 1304 // if (result.done) break; |
1314 Label result_not_done; | 1305 Label result_not_done; |
1315 VisitForControl(stmt->result_done(), | 1306 VisitForControl(stmt->result_done(), |
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4862 Assembler::target_address_at(pc_immediate_load_address)) == | 4853 Assembler::target_address_at(pc_immediate_load_address)) == |
4863 reinterpret_cast<uint32_t>( | 4854 reinterpret_cast<uint32_t>( |
4864 isolate->builtins()->OsrAfterStackCheck()->entry())); | 4855 isolate->builtins()->OsrAfterStackCheck()->entry())); |
4865 return OSR_AFTER_STACK_CHECK; | 4856 return OSR_AFTER_STACK_CHECK; |
4866 } | 4857 } |
4867 | 4858 |
4868 | 4859 |
4869 } } // namespace v8::internal | 4860 } } // namespace v8::internal |
4870 | 4861 |
4871 #endif // V8_TARGET_ARCH_MIPS | 4862 #endif // V8_TARGET_ARCH_MIPS |
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